BiOrb Fen Shui Pebble Pack White: for spiritual and moral purity Feng Shui means 'Wind and Water' and is the ancient Chinese art of placement where we can arrange our living and working space to create balance and harmonising different colours to invite beneficial energies into our home. Clean, flowing, well-lit water with fish is the ultimate way of transforming bad energy and Feng Shui pebbles are designed to decorate your aquarium as well as promote the flow of positive energy. They come in a range of solid marble colours which deepen and shine once placed in water. Marble is a hard stone which won't cloud the water.